Unique organ that stores large amounts of water. Even a sliver can power up your gear.
| Village 10★ // Stormlord | Reward1 | x1 | 16% |
| Village 10★ // Stormlord | Sub | x1 | 16% |
| Hub 7★ // The Looming Calamity | Reward1 | x1 | 16% |
| Hub 7★ // The Looming Calamity | Sub | x1 | 16% |
| Hub 1★ DLC // Evil Descendeth Upon Us | Reward1 | x2 | 10% |
| Hub G4 // Who Will Hunt the Rain? | Reward2 | x2 | 8% |
| Heavy Bowgun | Ill Omen LV1 | x5 |
| Sword & Shield | Ominous Treasure LV1 | x3 |
| Dual Blades | Stormwind Fans LV2 | x3 |
| Hunting Horn | Autumn Lute LV2 | x3 |
| Heavy Bowgun | Pluripotent Plaser LV3 | x2 |
| Light Bowgun | Wicked Needle LV2 | x3 |
| Long Sword | Atlantica LV3 | x2 |
| Long Sword | Ominous Spring LV2 | x2 |
| Great Sword | Thrashgash Blade LV3 | x2 |
| Sword & Shield | Dual Cross Brand LV3 | x2 |
| Lance | Ominous Cloud LV2 | x3 |
| Lance | Sharq Attaq LV4 | x3 |
| Bow | Formidable Haze LV4 | x2 |
| Bow | Tempest Nightbow LV2 | x3 |
| Tempest Robe LV1 | x2 |
| Tempest Sleeves LV1 | x3 |
| Welkin Robe LV1 | x2 |
| Welkin Sleeves LV1 | x3 |
| Grand Tempest Robe LV1 | x4 |
| Grand Welkin Robe LV1 | x4 |